document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=124897>Question 124897</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group of 80 people attend a ball game. There were three times as many children as adults in the group. Write a system of equations that you could use to set up this problem, where a is the number of adults and c is the number of children in the group. Solve the system of equations for c, the number of children in the group. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #91530 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=91530\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> C+A=80 OR C=80-A<BR>\n" );
document.write( "C=3A NOW SET THESE 2 EQUATION EQUAL BECAUSE THEY BOTH EQUAL C.<BR>\n" );
document.write( "3A=80-A<BR>\n" );
document.write( "3A+A=80<BR>\n" );
document.write( "4A=80<BR>\n" );
document.write( "A=80/4<BR>\n" );
document.write( "A=20 NUMBER OF ADULTS.<BR>\n" );
document.write( "80-20=60 CHILDREN.<BR>\n" );
document.write( "PROOF.<BR>\n" );
document.write( "3*20=80-20<BR>\n" );
document.write( "60=60\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );